package com.project.pudongdata.service;

public interface AuthenticationService {
    /**
     * 验证用户名密码是否存在
     * @param userName
     * @param password
     * @return
     */
    public boolean check(String userName, String password);

    /**
     *
     * @param userName
     * @param password
     * @return
     */
    public String getSign(String userName, String password);
}
